New version of prebuild script, to work with imageproc-settings migra…

…tion.

Update for cleaner extraction of ident str

prebuild.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+"""
+Write version and date information to a .c file, so compiles can be updated
+
+authors: ronf, fgb, apullin
+"""
+
+import time, os, sys, re
+
+VER_STR_LENGTH_MAX = 80
+
+if len(sys.argv) < 2:
+    print("Not enough arguments given. Need path to settings.h file.")
+    sys.exit()
+
+settingsFile    = sys.argv[1] # path to settings.h
+
+infile = open(settingsFile, 'r') #read only
+#infile = open('settings.h')
+
+for line in infile:
+    if '#define IDENT_STR' in line:
+        identStrLine = line
+        infile.close()
+        break
+
+identStr = re.findall(r'"(.*?)"', line)[0]
+timestamp = time.strftime("%a %b %d %H:%M:%S %Y")
+verStr    = identStr + " " + timestamp
+verStrClip = verStr[0:VER_STR_LENGTH_MAX]
+
+# Write string to header file
+filename   = 'source/version-string.h'
+fileout = open(filename,'w')
+fileout.write(
+'/* automatically generated by version.py - do not edit! Do not enter into SCM! */\n\n'      + \
+'#define VERSION_STRING "'+ verStrClip + '"\n\n'      )
+fileout.close()
+
+print('updated ' + os.getcwd() + os.sep + filename)

version.c

@@ -2,7 +2,7 @@
 
 #include "version-string.h" //This will define the version string, and VERSION_STRING macro
 #ifndef VERSION_STRING
-#error "No version string is defined. This is strictly required to build. Check pre-build python step, version.py ."
+#error "No version string is defined. This is strictly required to build. Check pre-build python step, prebuild.py and setting.h ."
 #else
 static char version[] = VERSION_STRING ;
 #endif